The ability to manipulate microlaser performance is highly desirable so as to promote on-chip classical and quantum information-processing technology. Here, we demonstrate that mode manipulation of bottle microresonators is enabled by precise deposition of single gold nanoparticles in a reconfigurable and selective manner. Numerical investigation reveals the mechanism of introducing optical loss via single Au NP scattering. Experimental results show that the lasing action of cavity modes could be efficiently suppressed, and single mode lasing is successfully achieved with a high side mode suppression factor ∼13 dB.

中文翻译：

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单金纳米粒子操纵的腔模式

迫切需要具有操纵微激光性能的能力，以促进芯片上的经典和量子信息处理技术。在这里，我们证明了通过以可重构和选择性方式对单个金纳米颗粒进行精确沉积，可以实现瓶微谐振器的模式操纵。数值研究揭示了通过单金纳米粒子散射引入光损耗的机理。实验结果表明，可以有效地抑制腔模的激射作用，并以高侧模抑制因子〜13 dB成功实现了单模激射。